Avaliação da utilização de métodos de controle de erosão não convencionais (barraginhas)

Abstract

Agricultural production occupies about one-third of the territory of Paraná and, despite its economic relevance, inadequate management practices and intensive soil use have contributed to its degradation. Pluvial water erosion, caused by rainfall, is one of the main factors in this process, leading to soil, nutrient, and productivity losses. Given this scenario, this study aimed to evaluate the use of barraginhas (small retention basins) as a non-conventional erosion control method in agricultural areas of Mangueirinha, southwestern Paraná. The research was conducted through field measurements, direct observations, interviews with farmers, and analysis of the structures’ layout, maintenance, and effectiveness. The results showed that barraginhas are widely accepted among farmers due to their ease of mechanization and simple implementation, demonstrating high efficiency in localized water and sediment retention. However, their effectiveness is limited to specific areas and depends on periodic maintenance and integration with other conservation practices such as no-till farming and terracing. It is concluded that barraginhas represent a viable, low-cost, and relevant alternative for soil and water conservation, especially when associated with sustainable land management practices.